Home / 127,115.60-190,892.10-82,938.20

Finding the Fourth Proportional to 127,115.60, 190,892.10 and 82,938.20

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Solution

The fourth proportional to 127,115.60, 190,892.10 and 82,938.20 is: 124,549.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,115.60 : 190,892.10 = 82,938.20 : x
  2. Step 2: Convert to fraction form
    127,115.60/190,892.10 = 82,938.20/x
  3. Step 3: Cross multiply
    127,115.60x = 190,892.10 × 82,938.20
  4. Step 4: Simplify right side
    127,115.60x = 15,832,247,168.22
  5. Step 5: Solve for x
    x = 15,832,247,168.22/127,115.60
  6. Step 6: Final answer
    x = 124,549.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.